The Brazilian authorities have deployed more than 80,000 police and soldiers to patrol Rio during the games.

Security incidents at Rio 2016

5 August – Two rowing coaches robbed at knifepoint on Ipanema beach, the Australian Olympic Committee says

6 August – Security co-ordinator for the opening ceremony targeted in attempted robbery as he left the Maracana stadium the morning after – his guards opened fire on the assailants, killing one of them

6 August – Portuguese education minister robbed in Ipanema as he was coming back from a cycling event

11 August – Russian swimmer Evgeny Korotyshkin (not a competitor) posted a photo on Instagram of two armed men who robbed him near Ipanema – the photo has since been taken down

An earlier report said that the USOC had denied the incident occurred when it was instead the IOC. This has been amended.